Pltjid pressure governor



(No Model.)

W. LYON. FLUID PRESSURE GOVERNOR'.

Patentedhn. 22, 1884.

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IIN-iran STATES PATENT O1-rien WILLIAM LYON, or sHEFFiELD, COUNTY OF YORK, ENGLAND.

r-'LulD-F'ulass'uuray GOVERNOR.

SPECILTICATION forming part of Letters Patent No. 292,241, ,dated January 22, 1SE4.

Application Eled Scptcmbrr 15, 188B. (Xo model.) Patented in England March 27, 1882, No. 1,472.

To ftZZ whom, t may cora/cera:

j l Figure l of these drawings represents aseo- Be it known that I, WILLIAM LYON, a subl tional elevation and top view of a governor ject of the Queen of Great Britain, residing at Sh eiiield, in the county of York, England, have invented a new and useful Improvement in Fluid-Pressure Governors, (for which I have obtained British LettersPatent No. 1,472 of 1882, dated March 27, 1882,) of which the following is a speciiication.

My invention relates to improved means for regulating the pressure and iiow of gas automatically, and is applicable to either station, district, or consumersfgovernors, so that, for example, although the pressure in the main or service pipes may be at a high gure and very variable, the pressure in the consumers pip es may be kept at an unvarying and low pressure. The inlet-pressure may vary from thirtytenth-s to fifty-tenths. The outlet may be kept at an undeviating pressure of eight-tenths, (of an inch.)

I am aware that many forms of gas-governors have beendesigned for the above-described purpose. In such governors heretofore, the pressure of the inlet-gas 7 has most commonly been relied on to open or close the inletvalve, (more or less,) asv may be required, to regulate the flow of gas past said valve. The application, instead of the pressure, of the outlet-gast has been proposed, and my govern or op crates on this better principle, whereby the pressure of the outlet-gas may be directly regulatedwith greatA nicety, as aforesaid.

The present invention consists in an improved combination and arrangement of parts,

in a gas-governor, of great simplicity, utilizing a large pressure-area, adapted to be readily inspected and kept in order, and operating automatically by the pressure of the gas in the outlet or c onsumers side of the governor, acting on the surface of a liquid contained inV a chamber closed at top, and thus raising or lowering the liquid in an open chamber, which communicates with the former below the sur,- faoe of the liquid, and contains a iioa-t which is connected directly to the inlet-valve. The liquid used may be water, Oil, glycerine, or

other suitable liquid or mixture.

rIwo plans or methods of construction of gasgovernors according to my invention are illustrated on a sheet of drawings, which accom pa` niesthis specification as part thereof'.

having two chambers placedA side by side; and Fig.2 represents like views of a preferred form having the iioat-chamber surrounded by an annular chamber, the latter being a Very convenient arrangement.

The same letters of reference indicate corresponding parts/,in both figures.

My governor in either form is'constructed with two compartments or chambers, A B, A being the float-chamber, and B the closed chamber. The latter communicates with the gas'in the outlet or consumers pipe G by means of the small pipe D. The two chambers A and B communicate under the division-wall E, and are provided with a sufiicient quantity of liquid to support the float F at a proper height. Thisiloat is connected with the valve G by means of .thevalve-rod H, which may be secured at the top of the float, either by locknuts, as in Fig. l, or by' a ball-nut, as in Fig. 2, vor by other equivalent means. The valverod passes through Aa vertical tube, I, which rises from the bottom of the chamber A suffi- The will thus be obviousthat the gas will enter the chamber B through the vertical pipe D, and will press upon the surface of the liquid in said chamber B, raising the liquid in the chamber A, and with it the iioat and valve, until the diminished flow of gas reduces the pressure to the adjusted amount. If, on the contrary, the pressure in the chamber B is reduced by the withdrawal of gas, the valve immediately opens and admits sufficient gas to regain the normal and regulated pressure. vIn either case the action is instantaneous, the governor being sensitive to the least variation of pressure.A

The-filling-pipe K and overflow-pipe L (represented in Fig. l) may be dispensed with and a simple plug, M, Fig. 2, be used instead, the liquid being in this case introduced through the open chamber A.

IOO o I do not bind myself to the use of the exact valve shown in the drawings, but I find itin practice simple and effective.

I do net claim, broadly, the combination, in a gas-governor, of an open iioat-chamber and a closed pressure-chambercommunicati ngwith each other near the bottom, and provided with a suitable iiuid for transmitting motion through a ioat to a valve, as I am aware that such a combination exists, ot' an earlier date, in an apparatus for regulating the exhauster in gasworks,"7 said closed chamber being connected with the suction-pipe, and said iloat with the throttle-'valve of the fan-driving engine. I am This I also The combination, in a governor forregulating the pressure and iiow of gas, of a chamber closed at top and supplied with a suitable liquid, a communication between this chamber and the gas-outlet er consumers pipe by which the pressure of the gas in the latter is brought to bear on a large area of liquid surface Within this chamber, a second chamber open at top, communicating with the iirst below the lowest level of the liquid, and a ioat-in said second chamber connected with the gas-inlet Valve, substantially as hereinbefore described, for the purposes set forth.

In testimony that I claim the foregoing as my own I have affixed hereto my signature in presence ot' two witnesses.

'WILLIAM LYON.

Vit nesses:

Roer. F. DRURY, I. F. HIBBERT. 

